28591940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{397}}^1$

素因数の和:696

約数の個数: 48

約数和(自身を含む): 65058672

約数和(自身を除く): 36466732

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 277, 397, 554, 794, 1108, 1385, 1588, 1985, 2770, 3601, 3970, 5161, 5540, 7202, 7940, 10322, 14404, 18005, 20644, 25805, 36010, 51610, 72020, 103220, 109969, 219938, 439876, 549845, 1099690, 1429597, 2199380, 2859194, 5718388, 7147985, 14295970, 28591940]

約数ペア:

[(1, 28591940), (2, 14295970), (4, 7147985), (5, 5718388), (10, 2859194), (13, 2199380), (20, 1429597), (26, 1099690), (52, 549845), (65, 439876), (130, 219938), (260, 109969), (277, 103220), (397, 72020), (554, 51610), (794, 36010), (1108, 25805), (1385, 20644), (1588, 18005), (1985, 14404), (2770, 10322), (3601, 7940), (3970, 7202), (5161, 5540)]